1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
37 * All rights reserved.
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *****************************************************************************/
66 #include <linux/kernel.h>
67 #include <linux/slab.h>
68 #include <linux/skbuff.h>
69 #include <linux/netdevice.h>
70 #include <linux/etherdevice.h>
72 #include <linux/if_arp.h>
73 #include <linux/time.h>
74 #include <net/mac80211.h>
75 #include <net/ieee80211_radiotap.h>
78 #include "iwl-op-mode.h"
82 #include "time-event.h"
83 #include "iwl-eeprom-parse.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.h"
88 #include "iwl-nvm-parse.h"
91 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
94 .types
= BIT(NL80211_IFTYPE_STATION
),
98 .types
= BIT(NL80211_IFTYPE_AP
) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
100 BIT(NL80211_IFTYPE_P2P_GO
),
104 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
108 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
110 .num_different_channels
= 2,
112 .limits
= iwl_mvm_limits
,
113 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
117 #ifdef CONFIG_PM_SLEEP
118 static const struct nl80211_wowlan_tcp_data_token_feature
119 iwl_mvm_wowlan_tcp_token_feature
= {
122 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
125 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
126 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
127 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
128 sizeof(struct ethhdr
) -
129 sizeof(struct iphdr
) -
130 sizeof(struct tcphdr
),
131 .data_interval_max
= 65535, /* __le16 in API */
132 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
133 sizeof(struct ethhdr
) -
134 sizeof(struct iphdr
) -
135 sizeof(struct tcphdr
),
140 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
153 BC_FILTER_MAGIC_NONE
= 0,
158 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
162 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
165 /* frame type - arp, hw type - ethernet */
167 BCAST_FILTER_OFFSET_PAYLOAD_START
,
168 .offset
= sizeof(rfc1042_header
),
169 .val
= cpu_to_be32(0x08060001),
170 .mask
= cpu_to_be32(0xffffffff),
175 BCAST_FILTER_OFFSET_PAYLOAD_START
,
176 .offset
= sizeof(rfc1042_header
) + 2 +
177 sizeof(struct arphdr
) +
178 ETH_ALEN
+ sizeof(__be32
) +
180 .mask
= cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
187 /* dhcp offer bcast */
189 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
194 .offset
= offsetof(struct udphdr
, dest
),
195 .val
= cpu_to_be32(0x00440000),
196 .mask
= cpu_to_be32(0xffff0000),
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
202 .mask
= cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
208 /* last filter must be empty */
213 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
215 if (!iwl_mvm_is_d0i3_supported(mvm
))
218 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
219 spin_lock_bh(&mvm
->refs_lock
);
220 mvm
->refs
[ref_type
]++;
221 spin_unlock_bh(&mvm
->refs_lock
);
222 iwl_trans_ref(mvm
->trans
);
225 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
227 if (!iwl_mvm_is_d0i3_supported(mvm
))
230 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
231 spin_lock_bh(&mvm
->refs_lock
);
232 WARN_ON(!mvm
->refs
[ref_type
]--);
233 spin_unlock_bh(&mvm
->refs_lock
);
234 iwl_trans_unref(mvm
->trans
);
237 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
238 enum iwl_mvm_ref_type except_ref
)
242 if (!iwl_mvm_is_d0i3_supported(mvm
))
245 spin_lock_bh(&mvm
->refs_lock
);
246 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
247 if (except_ref
== i
|| !mvm
->refs
[i
])
250 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
252 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
253 iwl_trans_unref(mvm
->trans
);
256 spin_unlock_bh(&mvm
->refs_lock
);
259 bool iwl_mvm_ref_taken(struct iwl_mvm
*mvm
)
264 if (!iwl_mvm_is_d0i3_supported(mvm
))
267 spin_lock_bh(&mvm
->refs_lock
);
268 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
274 spin_unlock_bh(&mvm
->refs_lock
);
279 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
281 iwl_mvm_ref(mvm
, ref_type
);
283 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
284 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
287 iwl_mvm_unref(mvm
, ref_type
);
294 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
298 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
299 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
300 mvm
->phy_ctxts
[i
].id
= i
;
301 mvm
->phy_ctxts
[i
].ref
= 0;
305 struct ieee80211_regdomain
*iwl_mvm_get_regdomain(struct wiphy
*wiphy
,
307 enum iwl_mcc_source src_id
,
310 struct ieee80211_regdomain
*regd
= NULL
;
311 struct ieee80211_hw
*hw
= wiphy_to_ieee80211_hw(wiphy
);
312 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
313 struct iwl_mcc_update_resp
*resp
;
315 IWL_DEBUG_LAR(mvm
, "Getting regdomain data for %s from FW\n", alpha2
);
317 lockdep_assert_held(&mvm
->mutex
);
319 resp
= iwl_mvm_update_mcc(mvm
, alpha2
, src_id
);
320 if (IS_ERR_OR_NULL(resp
)) {
321 IWL_DEBUG_LAR(mvm
, "Could not get update from FW %d\n",
322 PTR_ERR_OR_ZERO(resp
));
327 *changed
= (resp
->status
== MCC_RESP_NEW_CHAN_PROFILE
);
329 regd
= iwl_parse_nvm_mcc_info(mvm
->trans
->dev
, mvm
->cfg
,
330 __le32_to_cpu(resp
->n_channels
),
332 __le16_to_cpu(resp
->mcc
));
333 /* Store the return source id */
334 src_id
= resp
->source_id
;
336 if (IS_ERR_OR_NULL(regd
)) {
337 IWL_DEBUG_LAR(mvm
, "Could not get parse update from FW %d\n",
338 PTR_ERR_OR_ZERO(regd
));
342 IWL_DEBUG_LAR(mvm
, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
343 regd
->alpha2
, regd
->alpha2
[0], regd
->alpha2
[1], src_id
);
344 mvm
->lar_regdom_set
= true;
345 mvm
->mcc_src
= src_id
;
351 void iwl_mvm_update_changed_regdom(struct iwl_mvm
*mvm
)
354 struct ieee80211_regdomain
*regd
;
356 if (!iwl_mvm_is_lar_supported(mvm
))
359 regd
= iwl_mvm_get_current_regdomain(mvm
, &changed
);
360 if (!IS_ERR_OR_NULL(regd
)) {
361 /* only update the regulatory core if changed */
363 regulatory_set_wiphy_regd(mvm
->hw
->wiphy
, regd
);
369 struct ieee80211_regdomain
*iwl_mvm_get_current_regdomain(struct iwl_mvm
*mvm
,
372 return iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, "ZZ",
373 iwl_mvm_is_wifi_mcc_supported(mvm
) ?
374 MCC_SOURCE_GET_CURRENT
:
375 MCC_SOURCE_OLD_FW
, changed
);
378 int iwl_mvm_init_fw_regd(struct iwl_mvm
*mvm
)
380 enum iwl_mcc_source used_src
;
381 struct ieee80211_regdomain
*regd
;
384 const struct ieee80211_regdomain
*r
=
385 rtnl_dereference(mvm
->hw
->wiphy
->regd
);
390 /* save the last source in case we overwrite it below */
391 used_src
= mvm
->mcc_src
;
392 if (iwl_mvm_is_wifi_mcc_supported(mvm
)) {
393 /* Notify the firmware we support wifi location updates */
394 regd
= iwl_mvm_get_current_regdomain(mvm
, NULL
);
395 if (!IS_ERR_OR_NULL(regd
))
399 /* Now set our last stored MCC and source */
400 regd
= iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, r
->alpha2
, used_src
,
402 if (IS_ERR_OR_NULL(regd
))
405 /* update cfg80211 if the regdomain was changed */
407 ret
= regulatory_set_wiphy_regd_sync_rtnl(mvm
->hw
->wiphy
, regd
);
415 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
417 struct ieee80211_hw
*hw
= mvm
->hw
;
419 static const u32 mvm_ciphers
[] = {
420 WLAN_CIPHER_SUITE_WEP40
,
421 WLAN_CIPHER_SUITE_WEP104
,
422 WLAN_CIPHER_SUITE_TKIP
,
423 WLAN_CIPHER_SUITE_CCMP
,
426 /* Tell mac80211 our characteristics */
427 ieee80211_hw_set(hw
, SIGNAL_DBM
);
428 ieee80211_hw_set(hw
, SPECTRUM_MGMT
);
429 ieee80211_hw_set(hw
, REPORTS_TX_ACK_STATUS
);
430 ieee80211_hw_set(hw
, QUEUE_CONTROL
);
431 ieee80211_hw_set(hw
, WANT_MONITOR_VIF
);
432 ieee80211_hw_set(hw
, SUPPORTS_PS
);
433 ieee80211_hw_set(hw
, SUPPORTS_DYNAMIC_PS
);
434 ieee80211_hw_set(hw
, AMPDU_AGGREGATION
);
435 ieee80211_hw_set(hw
, TIMING_BEACON_ONLY
);
436 ieee80211_hw_set(hw
, CONNECTION_MONITOR
);
437 ieee80211_hw_set(hw
, CHANCTX_STA_CSA
);
438 ieee80211_hw_set(hw
, SUPPORT_FAST_XMIT
);
439 ieee80211_hw_set(hw
, SUPPORTS_CLONED_SKBS
);
440 ieee80211_hw_set(hw
, SUPPORTS_AMSDU_IN_AMPDU
);
441 ieee80211_hw_set(hw
, NEEDS_UNIQUE_STA_ADDR
);
443 if (mvm
->trans
->max_skb_frags
)
444 hw
->netdev_features
= NETIF_F_HIGHDMA
| NETIF_F_SG
;
446 hw
->queues
= mvm
->first_agg_queue
;
447 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
448 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
449 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
450 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
|
451 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED
;
452 hw
->rate_control_algorithm
= "iwl-mvm-rs";
453 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
454 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
456 BUILD_BUG_ON(ARRAY_SIZE(mvm
->ciphers
) < ARRAY_SIZE(mvm_ciphers
) + 2);
457 memcpy(mvm
->ciphers
, mvm_ciphers
, sizeof(mvm_ciphers
));
458 hw
->wiphy
->n_cipher_suites
= ARRAY_SIZE(mvm_ciphers
);
459 hw
->wiphy
->cipher_suites
= mvm
->ciphers
;
462 * Enable 11w if advertised by firmware and software crypto
463 * is not enabled (as the firmware will interpret some mgmt
464 * packets, so enabling it with software crypto isn't safe)
466 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
467 !iwlwifi_mod_params
.sw_crypto
) {
468 ieee80211_hw_set(hw
, MFP_CAPABLE
);
469 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
470 WLAN_CIPHER_SUITE_AES_CMAC
;
471 hw
->wiphy
->n_cipher_suites
++;
474 /* currently FW API supports only one optional cipher scheme */
475 if (mvm
->fw
->cs
[0].cipher
) {
476 mvm
->hw
->n_cipher_schemes
= 1;
477 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
478 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
479 mvm
->fw
->cs
[0].cipher
;
480 hw
->wiphy
->n_cipher_suites
++;
483 ieee80211_hw_set(hw
, SINGLE_SCAN_ON_ALL_BANDS
);
484 hw
->wiphy
->features
|=
485 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
486 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
|
487 NL80211_FEATURE_ND_RANDOM_MAC_ADDR
;
489 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
490 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
491 hw
->chanctx_data_size
= sizeof(u16
);
493 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
494 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
495 BIT(NL80211_IFTYPE_AP
) |
496 BIT(NL80211_IFTYPE_P2P_GO
) |
497 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
498 BIT(NL80211_IFTYPE_ADHOC
);
500 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
501 hw
->wiphy
->regulatory_flags
|= REGULATORY_ENABLE_RELAX_NO_IR
;
502 if (iwl_mvm_is_lar_supported(mvm
))
503 hw
->wiphy
->regulatory_flags
|= REGULATORY_WIPHY_SELF_MANAGED
;
505 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
506 REGULATORY_DISABLE_BEACON_HINTS
;
508 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
509 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
511 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
513 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
514 hw
->wiphy
->n_iface_combinations
=
515 ARRAY_SIZE(iwl_mvm_iface_combinations
);
517 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
518 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
519 /* we can compensate an offset of up to 3 channels = 15 MHz */
520 hw
->wiphy
->max_adj_channel_rssi_comp
= 3 * 5;
522 /* Extract MAC address */
523 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
524 hw
->wiphy
->addresses
= mvm
->addresses
;
525 hw
->wiphy
->n_addresses
= 1;
527 /* Extract additional MAC addresses if available */
528 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
529 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
531 for (i
= 1; i
< num_mac
; i
++) {
532 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
534 mvm
->addresses
[i
].addr
[5]++;
535 hw
->wiphy
->n_addresses
++;
538 iwl_mvm_reset_phy_ctxts(mvm
);
540 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
542 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
544 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK
& IWL_MVM_SCAN_MASK
);
545 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
) ||
546 IWL_MVM_MAX_LMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
));
548 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
549 mvm
->max_scans
= IWL_MVM_MAX_UMAC_SCANS
;
551 mvm
->max_scans
= IWL_MVM_MAX_LMAC_SCANS
;
553 if (mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
].n_channels
)
554 hw
->wiphy
->bands
[NL80211_BAND_2GHZ
] =
555 &mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
];
556 if (mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
].n_channels
) {
557 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
] =
558 &mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
];
560 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
561 IWL_UCODE_TLV_CAPA_BEAMFORMER
) &&
562 fw_has_api(&mvm
->fw
->ucode_capa
,
563 IWL_UCODE_TLV_API_LQ_SS_PARAMS
))
564 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
]->vht_cap
.cap
|=
565 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE
;
568 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
570 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
571 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
573 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
575 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
576 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
577 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
578 /* we create the 802.11 header and zero length SSID IE. */
579 hw
->wiphy
->max_sched_scan_ie_len
=
580 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
581 hw
->wiphy
->max_sched_scan_plans
= IWL_MAX_SCHED_SCAN_PLANS
;
582 hw
->wiphy
->max_sched_scan_plan_interval
= U16_MAX
;
585 * the firmware uses u8 for num of iterations, but 0xff is saved for
586 * infinite loop, so the maximum number of iterations is actually 254.
588 hw
->wiphy
->max_sched_scan_plan_iterations
= 254;
590 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
591 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
592 NL80211_FEATURE_P2P_GO_OPPPS
|
593 NL80211_FEATURE_DYNAMIC_SMPS
|
594 NL80211_FEATURE_STATIC_SMPS
|
595 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
597 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
598 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
))
599 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
600 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
601 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
))
602 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
604 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
605 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
))
606 hw
->wiphy
->features
|=
607 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
609 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
610 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
))
611 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
613 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
615 #ifdef CONFIG_PM_SLEEP
616 if (iwl_mvm_is_d0i3_supported(mvm
) &&
617 device_can_wakeup(mvm
->trans
->dev
)) {
618 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
619 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
622 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
623 mvm
->trans
->ops
->d3_suspend
&&
624 mvm
->trans
->ops
->d3_resume
&&
625 device_can_wakeup(mvm
->trans
->dev
)) {
626 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_MAGIC_PKT
|
627 WIPHY_WOWLAN_DISCONNECT
|
628 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
629 WIPHY_WOWLAN_RFKILL_RELEASE
|
630 WIPHY_WOWLAN_NET_DETECT
;
631 if (!iwlwifi_mod_params
.sw_crypto
)
632 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
633 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
634 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
636 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
637 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
638 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
639 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
640 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
641 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
645 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
646 /* assign default bcast filtering configuration */
647 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
650 ret
= iwl_mvm_leds_init(mvm
);
654 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
655 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
)) {
656 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
657 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
658 ieee80211_hw_set(hw
, TDLS_WIDER_BW
);
661 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
662 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
)) {
663 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
664 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
667 hw
->netdev_features
|= mvm
->cfg
->features
;
668 if (!iwl_mvm_is_csum_supported(mvm
)) {
669 hw
->netdev_features
&= ~(IWL_TX_CSUM_NETIF_FLAGS
|
671 /* We may support SW TX CSUM */
672 if (IWL_MVM_SW_TX_CSUM_OFFLOAD
)
673 hw
->netdev_features
|= IWL_TX_CSUM_NETIF_FLAGS
;
676 ret
= ieee80211_register_hw(mvm
->hw
);
678 iwl_mvm_leds_exit(mvm
);
683 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
684 struct ieee80211_sta
*sta
,
687 struct iwl_mvm_sta
*mvmsta
;
691 * double check the IN_D0I3 flag both before and after
692 * taking the spinlock, in order to prevent taking
693 * the spinlock when not needed.
695 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
698 spin_lock(&mvm
->d0i3_tx_lock
);
700 * testing the flag again ensures the skb dequeue
701 * loop (on d0i3 exit) hasn't run yet.
703 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
706 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
707 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
708 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
711 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
712 ieee80211_stop_queues(mvm
->hw
);
715 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
716 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
720 spin_unlock(&mvm
->d0i3_tx_lock
);
724 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
725 struct ieee80211_tx_control
*control
,
728 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
729 struct ieee80211_sta
*sta
= control
->sta
;
730 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
731 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
733 if (iwl_mvm_is_radio_killed(mvm
)) {
734 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
738 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
739 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
740 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
743 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
744 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
745 ieee80211_is_mgmt(hdr
->frame_control
) &&
746 !ieee80211_is_deauth(hdr
->frame_control
) &&
747 !ieee80211_is_disassoc(hdr
->frame_control
) &&
748 !ieee80211_is_action(hdr
->frame_control
)))
752 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
754 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
759 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
763 ieee80211_free_txskb(hw
, skb
);
766 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
768 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
773 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
775 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
777 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
780 /* enabled by default */
784 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
786 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
788 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
792 iwl_mvm_ampdu_check_trigger(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
793 struct ieee80211_sta
*sta
, u16 tid
, u16 rx_ba_ssn
,
794 enum ieee80211_ampdu_mlme_action action
)
796 struct iwl_fw_dbg_trigger_tlv
*trig
;
797 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
799 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
802 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
803 ba_trig
= (void *)trig
->data
;
805 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
809 case IEEE80211_AMPDU_TX_OPERATIONAL
: {
810 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
811 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
813 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_start
, tid
,
814 "TX AGG START: MAC %pM tid %d ssn %d\n",
815 sta
->addr
, tid
, tid_data
->ssn
);
818 case IEEE80211_AMPDU_TX_STOP_CONT
:
819 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_stop
, tid
,
820 "TX AGG STOP: MAC %pM tid %d\n",
823 case IEEE80211_AMPDU_RX_START
:
824 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_start
, tid
,
825 "RX AGG START: MAC %pM tid %d ssn %d\n",
826 sta
->addr
, tid
, rx_ba_ssn
);
828 case IEEE80211_AMPDU_RX_STOP
:
829 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_stop
, tid
,
830 "RX AGG STOP: MAC %pM tid %d\n",
838 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
839 struct ieee80211_vif
*vif
,
840 struct ieee80211_ampdu_params
*params
)
842 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
844 bool tx_agg_ref
= false;
845 struct ieee80211_sta
*sta
= params
->sta
;
846 enum ieee80211_ampdu_mlme_action action
= params
->action
;
847 u16 tid
= params
->tid
;
848 u16
*ssn
= ¶ms
->ssn
;
849 u8 buf_size
= params
->buf_size
;
850 bool amsdu
= params
->amsdu
;
852 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
853 sta
->addr
, tid
, action
);
855 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
858 /* return from D0i3 before starting a new Tx aggregation */
860 case IEEE80211_AMPDU_TX_START
:
861 case IEEE80211_AMPDU_TX_STOP_CONT
:
862 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
863 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
864 case IEEE80211_AMPDU_TX_OPERATIONAL
:
866 * for tx start, wait synchronously until D0i3 exit to
867 * get the correct sequence number for the tid.
868 * additionally, some other ampdu actions use direct
869 * target access, which is not handled automatically
870 * by the trans layer (unlike commands), so wait for
871 * d0i3 exit in these cases as well.
873 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
883 mutex_lock(&mvm
->mutex
);
886 case IEEE80211_AMPDU_RX_START
:
887 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
891 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true, buf_size
);
893 case IEEE80211_AMPDU_RX_STOP
:
894 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false, buf_size
);
896 case IEEE80211_AMPDU_TX_START
:
897 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
901 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
903 case IEEE80211_AMPDU_TX_STOP_CONT
:
904 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
906 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
907 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
908 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
910 case IEEE80211_AMPDU_TX_OPERATIONAL
:
911 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
,
923 if (action
== IEEE80211_AMPDU_RX_START
)
926 iwl_mvm_ampdu_check_trigger(mvm
, vif
, sta
, tid
,
929 mutex_unlock(&mvm
->mutex
);
932 * If the tid is marked as started, we won't use it for offloaded
933 * traffic on the next D0i3 entry. It's safe to unref.
936 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
941 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
942 struct ieee80211_vif
*vif
)
944 struct iwl_mvm
*mvm
= data
;
945 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
947 mvmvif
->uploaded
= false;
948 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
950 spin_lock_bh(&mvm
->time_event_lock
);
951 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
952 spin_unlock_bh(&mvm
->time_event_lock
);
954 mvmvif
->phy_ctxt
= NULL
;
955 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
958 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
960 /* clear the D3 reconfig, we only need it to avoid dumping a
961 * firmware coredump on reconfiguration, we shouldn't do that
962 * on D3->D0 transition
964 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
)) {
965 mvm
->fw_dump_desc
= &iwl_mvm_dump_desc_assert
;
966 iwl_mvm_fw_error_dump(mvm
);
969 /* cleanup all stale references (scan, roc), but keep the
970 * ucode_down ref until reconfig is complete
972 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
974 iwl_mvm_stop_device(mvm
);
976 mvm
->scan_status
= 0;
977 mvm
->ps_disabled
= false;
978 mvm
->calibrating
= false;
980 /* just in case one was running */
981 iwl_mvm_cleanup_roc_te(mvm
);
982 ieee80211_remain_on_channel_expired(mvm
->hw
);
985 * cleanup all interfaces, even inactive ones, as some might have
986 * gone down during the HW restart
988 ieee80211_iterate_interfaces(mvm
->hw
, 0, iwl_mvm_cleanup_iterator
, mvm
);
990 mvm
->p2p_device_vif
= NULL
;
991 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
993 iwl_mvm_reset_phy_ctxts(mvm
);
994 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
995 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
996 memset(mvm
->sta_deferred_frames
, 0, sizeof(mvm
->sta_deferred_frames
));
997 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
998 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
999 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
1000 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
1001 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
1002 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
1003 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
1005 ieee80211_wake_queues(mvm
->hw
);
1007 /* clear any stale d0i3 state */
1008 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1011 mvm
->rx_ba_sessions
= 0;
1012 mvm
->fw_dbg_conf
= FW_DBG_INVALID
;
1014 /* keep statistics ticking */
1015 iwl_mvm_accu_radio_stats(mvm
);
1018 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
1022 lockdep_assert_held(&mvm
->mutex
);
1024 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1025 /* Clean up some internal and mac80211 state on restart */
1026 iwl_mvm_restart_cleanup(mvm
);
1028 /* Hold the reference to prevent runtime suspend while
1029 * the start procedure runs. It's a bit confusing
1030 * that the UCODE_DOWN reference is taken, but it just
1031 * means "UCODE is not UP yet". ( TODO: rename this
1034 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1036 ret
= iwl_mvm_up(mvm
);
1038 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1039 /* Something went wrong - we need to finish some cleanup
1040 * that normally iwl_mvm_mac_restart_complete() below
1043 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1044 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1050 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
1052 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1055 /* Some hw restart cleanups must not hold the mutex */
1056 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1058 * Make sure we are out of d0i3. This is needed
1059 * to make sure the reference accounting is correct
1060 * (and there is no stale d0i3_exit_work).
1062 wait_event_timeout(mvm
->d0i3_exit_waitq
,
1063 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1068 mutex_lock(&mvm
->mutex
);
1069 ret
= __iwl_mvm_mac_start(mvm
);
1070 mutex_unlock(&mvm
->mutex
);
1075 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
1079 mutex_lock(&mvm
->mutex
);
1081 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1082 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1083 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1085 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
1088 /* allow transport/FW low power modes */
1089 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1092 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1093 * of packets the FW sent out, so we must reconnect.
1095 iwl_mvm_teardown_tdls_peers(mvm
);
1097 mutex_unlock(&mvm
->mutex
);
1100 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
1102 if (iwl_mvm_is_d0i3_supported(mvm
) &&
1103 iwl_mvm_enter_d0i3_on_suspend(mvm
))
1104 WARN_ONCE(!wait_event_timeout(mvm
->d0i3_exit_waitq
,
1105 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1108 "D0i3 exit on resume timed out\n");
1112 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
1113 enum ieee80211_reconfig_type reconfig_type
)
1115 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1117 switch (reconfig_type
) {
1118 case IEEE80211_RECONFIG_TYPE_RESTART
:
1119 iwl_mvm_restart_complete(mvm
);
1121 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
1122 iwl_mvm_resume_complete(mvm
);
1127 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1129 lockdep_assert_held(&mvm
->mutex
);
1131 /* firmware counters are obviously reset now, but we shouldn't
1132 * partially track so also clear the fw_reset_accu counters.
1134 memset(&mvm
->accu_radio_stats
, 0, sizeof(mvm
->accu_radio_stats
));
1136 /* async_handlers_wk is now blocked */
1139 * The work item could be running or queued if the
1140 * ROC time event stops just as we get here.
1142 flush_work(&mvm
->roc_done_wk
);
1144 iwl_mvm_stop_device(mvm
);
1146 iwl_mvm_async_handlers_purge(mvm
);
1147 /* async_handlers_list is empty and will stay empty: HW is stopped */
1149 /* the fw is stopped, the aux sta is dead: clean up driver state */
1150 iwl_mvm_del_aux_sta(mvm
);
1152 iwl_free_fw_paging(mvm
);
1155 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1156 * won't be called in this case).
1157 * But make sure to cleanup interfaces that have gone down before/during
1158 * HW restart was requested.
1160 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1161 ieee80211_iterate_interfaces(mvm
->hw
, 0,
1162 iwl_mvm_cleanup_iterator
, mvm
);
1164 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1165 * make sure there's nothing left there and warn if any is found.
1167 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1170 for (i
= 0; i
< mvm
->max_scans
; i
++) {
1171 if (WARN_ONCE(mvm
->scan_uid_status
[i
],
1172 "UMAC scan UID %d status was not cleaned\n",
1174 mvm
->scan_uid_status
[i
] = 0;
1179 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1181 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1183 flush_work(&mvm
->d0i3_exit_work
);
1184 flush_work(&mvm
->async_handlers_wk
);
1185 flush_work(&mvm
->add_stream_wk
);
1186 cancel_delayed_work_sync(&mvm
->fw_dump_wk
);
1187 iwl_mvm_free_fw_dump_desc(mvm
);
1189 mutex_lock(&mvm
->mutex
);
1190 __iwl_mvm_mac_stop(mvm
);
1191 mutex_unlock(&mvm
->mutex
);
1194 * The worker might have been waiting for the mutex, let it run and
1195 * discover that its list is now empty.
1197 cancel_work_sync(&mvm
->async_handlers_wk
);
1200 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1204 lockdep_assert_held(&mvm
->mutex
);
1206 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1207 if (!mvm
->phy_ctxts
[i
].ref
)
1208 return &mvm
->phy_ctxts
[i
];
1210 IWL_ERR(mvm
, "No available PHY context\n");
1214 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1217 struct iwl_dev_tx_power_cmd cmd
= {
1218 .v2
.set_mode
= cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC
),
1219 .v2
.mac_context_id
=
1220 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif
)->id
),
1221 .v2
.pwr_restriction
= cpu_to_le16(8 * tx_power
),
1223 int len
= sizeof(cmd
);
1225 if (tx_power
== IWL_DEFAULT_MAX_TX_POWER
)
1226 cmd
.v2
.pwr_restriction
= cpu_to_le16(IWL_DEV_MAX_TX_POWER
);
1228 if (!fw_has_api(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_API_TX_POWER_CHAIN
))
1229 len
= sizeof(cmd
.v2
);
1231 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0, len
, &cmd
);
1234 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1235 struct ieee80211_vif
*vif
)
1237 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1238 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1244 * make sure D0i3 exit is completed, otherwise a target access
1245 * during tx queue configuration could be done when still in
1248 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1253 * Not much to do here. The stack will not allow interface
1254 * types or combinations that we didn't advertise, so we
1255 * don't really have to check the types.
1258 mutex_lock(&mvm
->mutex
);
1260 /* make sure that beacon statistics don't go backwards with FW reset */
1261 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1262 mvmvif
->beacon_stats
.accu_num_beacons
+=
1263 mvmvif
->beacon_stats
.num_beacons
;
1265 /* Allocate resources for the MAC context, and add it to the fw */
1266 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1270 /* Counting number of interfaces is needed for legacy PM */
1271 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1275 * The AP binding flow can be done only after the beacon
1276 * template is configured (which happens only in the mac80211
1277 * start_ap() flow), and adding the broadcast station can happen
1278 * only after the binding.
1279 * In addition, since modifying the MAC before adding a bcast
1280 * station is not allowed by the FW, delay the adding of MAC context to
1281 * the point where we can also add the bcast station.
1282 * In short: there's not much we can do at this point, other than
1283 * allocating resources :)
1285 if (vif
->type
== NL80211_IFTYPE_AP
||
1286 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1287 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1289 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1293 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1297 mvmvif
->features
|= hw
->netdev_features
;
1299 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1303 ret
= iwl_mvm_power_update_mac(mvm
);
1305 goto out_remove_mac
;
1307 /* beacon filtering */
1308 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1310 goto out_remove_mac
;
1312 if (!mvm
->bf_allowed_vif
&&
1313 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1314 mvm
->bf_allowed_vif
= mvmvif
;
1315 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1316 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1320 * P2P_DEVICE interface does not have a channel context assigned to it,
1321 * so a dedicated PHY context is allocated to it and the corresponding
1322 * MAC context is bound to it at this stage.
1324 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1326 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1327 if (!mvmvif
->phy_ctxt
) {
1332 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1333 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1337 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1341 /* Save a pointer to p2p device vif, so it can later be used to
1342 * update the p2p device MAC when a GO is started/stopped */
1343 mvm
->p2p_device_vif
= vif
;
1346 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1350 iwl_mvm_binding_remove_vif(mvm
, vif
);
1352 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1354 if (mvm
->bf_allowed_vif
== mvmvif
) {
1355 mvm
->bf_allowed_vif
= NULL
;
1356 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1357 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1360 mvmvif
->phy_ctxt
= NULL
;
1361 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1363 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1366 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1368 mutex_unlock(&mvm
->mutex
);
1370 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1375 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1376 struct ieee80211_vif
*vif
)
1378 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1382 * mac80211 first removes all the stations of the vif and
1383 * then removes the vif. When it removes a station it also
1384 * flushes the AMPDU session. So by now, all the AMPDU sessions
1385 * of all the stations of this vif are closed, and the queues
1386 * of these AMPDU sessions are properly closed.
1387 * We still need to take care of the shared queues of the vif.
1390 mutex_lock(&mvm
->mutex
);
1391 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, 0);
1392 mutex_unlock(&mvm
->mutex
);
1395 * There are transports that buffer a few frames in the host.
1396 * For these, the flush above isn't enough since while we were
1397 * flushing, the transport might have sent more frames to the
1398 * device. To solve this, wait here until the transport is
1399 * empty. Technically, this could have replaced the flush
1400 * above, but flush is much faster than draining. So flush
1401 * first, and drain to make sure we have no frames in the
1402 * transport anymore.
1403 * If a station still had frames on the shared queues, it is
1404 * already marked as draining, so to complete the draining, we
1405 * just need to wait until the transport is empty.
1407 iwl_trans_wait_tx_queue_empty(mvm
->trans
, tfd_msk
);
1410 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1412 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1413 * We assume here that all the packets sent to the OFFCHANNEL
1414 * queue are sent in ROC session.
1416 flush_work(&mvm
->roc_done_wk
);
1419 * By now, all the AC queues are empty. The AGG queues are
1420 * empty too. We already got all the Tx responses for all the
1421 * packets in the queues. The drain work can have been
1422 * triggered. Flush it.
1424 flush_work(&mvm
->sta_drained_wk
);
1428 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1429 struct ieee80211_vif
*vif
)
1431 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1432 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1434 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1436 mutex_lock(&mvm
->mutex
);
1438 if (mvm
->bf_allowed_vif
== mvmvif
) {
1439 mvm
->bf_allowed_vif
= NULL
;
1440 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1441 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1444 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1447 * For AP/GO interface, the tear down of the resources allocated to the
1448 * interface is be handled as part of the stop_ap flow.
1450 if (vif
->type
== NL80211_IFTYPE_AP
||
1451 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1452 #ifdef CONFIG_NL80211_TESTMODE
1453 if (vif
== mvm
->noa_vif
) {
1454 mvm
->noa_vif
= NULL
;
1455 mvm
->noa_duration
= 0;
1458 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1462 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1463 mvm
->p2p_device_vif
= NULL
;
1464 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1465 iwl_mvm_binding_remove_vif(mvm
, vif
);
1466 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1467 mvmvif
->phy_ctxt
= NULL
;
1470 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1473 iwl_mvm_power_update_mac(mvm
);
1474 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1477 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1478 mutex_unlock(&mvm
->mutex
);
1481 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1486 struct iwl_mvm_mc_iter_data
{
1487 struct iwl_mvm
*mvm
;
1491 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1492 struct ieee80211_vif
*vif
)
1494 struct iwl_mvm_mc_iter_data
*data
= _data
;
1495 struct iwl_mvm
*mvm
= data
->mvm
;
1496 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1499 /* if we don't have free ports, mcast frames will be dropped */
1500 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1503 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1504 !vif
->bss_conf
.assoc
)
1507 cmd
->port_id
= data
->port_id
++;
1508 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1509 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1511 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1513 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1516 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1518 struct iwl_mvm_mc_iter_data iter_data
= {
1522 lockdep_assert_held(&mvm
->mutex
);
1524 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1527 ieee80211_iterate_active_interfaces_atomic(
1528 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1529 iwl_mvm_mc_iface_iterator
, &iter_data
);
1532 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1533 struct netdev_hw_addr_list
*mc_list
)
1535 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1536 struct iwl_mcast_filter_cmd
*cmd
;
1537 struct netdev_hw_addr
*addr
;
1542 addr_count
= netdev_hw_addr_list_count(mc_list
);
1543 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1544 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1548 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1549 cmd
= kzalloc(len
, GFP_ATOMIC
);
1555 return (u64
)(unsigned long)cmd
;
1558 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1559 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1560 cmd
->count
, addr
->addr
);
1561 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1562 addr
->addr
, ETH_ALEN
);
1566 return (u64
)(unsigned long)cmd
;
1569 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1570 unsigned int changed_flags
,
1571 unsigned int *total_flags
,
1574 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1575 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1577 mutex_lock(&mvm
->mutex
);
1579 /* replace previous configuration */
1580 kfree(mvm
->mcast_filter_cmd
);
1581 mvm
->mcast_filter_cmd
= cmd
;
1586 iwl_mvm_recalc_multicast(mvm
);
1588 mutex_unlock(&mvm
->mutex
);
1592 static void iwl_mvm_config_iface_filter(struct ieee80211_hw
*hw
,
1593 struct ieee80211_vif
*vif
,
1594 unsigned int filter_flags
,
1595 unsigned int changed_flags
)
1597 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1599 /* We support only filter for probe requests */
1600 if (!(changed_flags
& FIF_PROBE_REQ
))
1603 /* Supported only for p2p client interfaces */
1604 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
||
1608 mutex_lock(&mvm
->mutex
);
1609 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1610 mutex_unlock(&mvm
->mutex
);
1613 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1614 struct iwl_bcast_iter_data
{
1615 struct iwl_mvm
*mvm
;
1616 struct iwl_bcast_filter_cmd
*cmd
;
1621 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1622 const struct iwl_fw_bcast_filter
*in_filter
,
1623 struct iwl_fw_bcast_filter
*out_filter
)
1625 struct iwl_fw_bcast_filter_attr
*attr
;
1628 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1630 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1631 attr
= &out_filter
->attrs
[i
];
1636 switch (attr
->reserved1
) {
1637 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1638 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1643 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1645 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1646 attr
->val
= *(__be32
*)&vif
->addr
[2];
1651 attr
->reserved1
= 0;
1652 out_filter
->num_attrs
++;
1656 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1657 struct ieee80211_vif
*vif
)
1659 struct iwl_bcast_iter_data
*data
= _data
;
1660 struct iwl_mvm
*mvm
= data
->mvm
;
1661 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1662 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1663 struct iwl_fw_bcast_mac
*bcast_mac
;
1666 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1669 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1672 * enable filtering only for associated stations, but not for P2P
1675 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1676 !vif
->bss_conf
.assoc
)
1679 bcast_mac
->default_discard
= 1;
1681 /* copy all configured filters */
1682 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1684 * Make sure we don't exceed our filters limit.
1685 * if there is still a valid filter to be configured,
1686 * be on the safe side and just allow bcast for this mac.
1688 if (WARN_ON_ONCE(data
->current_filter
>=
1689 ARRAY_SIZE(cmd
->filters
))) {
1690 bcast_mac
->default_discard
= 0;
1691 bcast_mac
->attached_filters
= 0;
1695 iwl_mvm_set_bcast_filter(vif
,
1696 &mvm
->bcast_filters
[i
],
1697 &cmd
->filters
[data
->current_filter
]);
1699 /* skip current filter if it contains no attributes */
1700 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1703 /* attach the filter to current mac */
1704 bcast_mac
->attached_filters
|=
1705 cpu_to_le16(BIT(data
->current_filter
));
1707 data
->current_filter
++;
1711 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1712 struct iwl_bcast_filter_cmd
*cmd
)
1714 struct iwl_bcast_iter_data iter_data
= {
1719 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1722 memset(cmd
, 0, sizeof(*cmd
));
1723 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1724 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1726 #ifdef CONFIG_IWLWIFI_DEBUGFS
1727 /* use debugfs filters/macs if override is configured */
1728 if (mvm
->dbgfs_bcast_filtering
.override
) {
1729 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1730 sizeof(cmd
->filters
));
1731 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1737 /* if no filters are configured, do nothing */
1738 if (!mvm
->bcast_filters
)
1741 /* configure and attach these filters for each associated sta vif */
1742 ieee80211_iterate_active_interfaces(
1743 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1744 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1749 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1751 struct iwl_bcast_filter_cmd cmd
;
1753 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1756 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1759 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1763 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1769 static int iwl_mvm_update_mu_groups(struct iwl_mvm
*mvm
,
1770 struct ieee80211_vif
*vif
)
1772 struct iwl_mu_group_mgmt_cmd cmd
= {};
1774 memcpy(cmd
.membership_status
, vif
->bss_conf
.mu_group
.membership
,
1775 WLAN_MEMBERSHIP_LEN
);
1776 memcpy(cmd
.user_position
, vif
->bss_conf
.mu_group
.position
,
1777 WLAN_USER_POSITION_LEN
);
1779 return iwl_mvm_send_cmd_pdu(mvm
,
1780 WIDE_ID(DATA_PATH_GROUP
,
1781 UPDATE_MU_GROUPS_CMD
),
1782 0, sizeof(cmd
), &cmd
);
1785 static void iwl_mvm_mu_mimo_iface_iterator(void *_data
, u8
*mac
,
1786 struct ieee80211_vif
*vif
)
1788 if (vif
->mu_mimo_owner
) {
1789 struct iwl_mu_group_mgmt_notif
*notif
= _data
;
1792 * MU-MIMO Group Id action frame is little endian. We treat
1793 * the data received from firmware as if it came from the
1794 * action frame, so no conversion is needed.
1796 ieee80211_update_mu_groups(vif
,
1797 (u8
*)¬if
->membership_status
,
1798 (u8
*)¬if
->user_position
);
1802 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm
*mvm
,
1803 struct iwl_rx_cmd_buffer
*rxb
)
1805 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1806 struct iwl_mu_group_mgmt_notif
*notif
= (void *)pkt
->data
;
1808 ieee80211_iterate_active_interfaces_atomic(
1809 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1810 iwl_mvm_mu_mimo_iface_iterator
, notif
);
1813 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1814 struct ieee80211_vif
*vif
,
1815 struct ieee80211_bss_conf
*bss_conf
,
1818 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1822 * Re-calculate the tsf id, as the master-slave relations depend on the
1823 * beacon interval, which was not known when the station interface was
1826 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1827 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1829 if (changes
& BSS_CHANGED_ASSOC
&& !bss_conf
->assoc
&&
1831 iwl_mvm_send_lqm_cmd(vif
, LQM_CMD_OPERATION_STOP_MEASUREMENT
,
1835 * If we're not associated yet, take the (new) BSSID before associating
1836 * so the firmware knows. If we're already associated, then use the old
1837 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1838 * branch for disassociation below.
1840 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1841 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1843 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1845 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1847 /* after sending it once, adopt mac80211 data */
1848 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1849 mvmvif
->associated
= bss_conf
->assoc
;
1851 if (changes
& BSS_CHANGED_ASSOC
) {
1852 if (bss_conf
->assoc
) {
1853 /* clear statistics to get clean beacon counter */
1854 iwl_mvm_request_statistics(mvm
, true);
1855 memset(&mvmvif
->beacon_stats
, 0,
1856 sizeof(mvmvif
->beacon_stats
));
1858 /* add quota for this interface */
1859 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1861 IWL_ERR(mvm
, "failed to update quotas\n");
1865 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1868 * If we're restarting then the firmware will
1869 * obviously have lost synchronisation with
1870 * the AP. It will attempt to synchronise by
1871 * itself, but we can make it more reliable by
1872 * scheduling a session protection time event.
1874 * The firmware needs to receive a beacon to
1875 * catch up with synchronisation, use 110% of
1876 * the beacon interval.
1878 * Set a large maximum delay to allow for more
1879 * than a single interface.
1881 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1882 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1886 iwl_mvm_sf_update(mvm
, vif
, false);
1887 iwl_mvm_power_vif_assoc(mvm
, vif
);
1889 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1890 iwl_mvm_update_smps(mvm
, vif
,
1891 IWL_MVM_SMPS_REQ_PROT
,
1892 IEEE80211_SMPS_DYNAMIC
);
1894 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1896 * If update fails - SF might be running in associated
1897 * mode while disassociated - which is forbidden.
1899 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1900 "Failed to update SF upon disassociation\n");
1902 /* remove AP station now that the MAC is unassoc */
1903 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1905 IWL_ERR(mvm
, "failed to remove AP station\n");
1907 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1908 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1909 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1910 /* remove quota for this interface */
1911 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
1913 IWL_ERR(mvm
, "failed to update quotas\n");
1916 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1918 /* this will take the cleared BSSID from bss_conf */
1919 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1922 "failed to update MAC %pM (clear after unassoc)\n",
1927 * The firmware tracks the MU-MIMO group on its own.
1928 * However, on HW restart we should restore this data.
1930 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
1931 (changes
& BSS_CHANGED_MU_GROUPS
) && vif
->mu_mimo_owner
) {
1932 ret
= iwl_mvm_update_mu_groups(mvm
, vif
);
1935 "failed to update VHT MU_MIMO groups\n");
1938 iwl_mvm_recalc_multicast(mvm
);
1939 iwl_mvm_configure_bcast_filter(mvm
);
1941 /* reset rssi values */
1942 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1944 iwl_mvm_bt_coex_vif_change(mvm
);
1945 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1946 IEEE80211_SMPS_AUTOMATIC
);
1947 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
1948 IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
1949 iwl_mvm_config_scan(mvm
);
1950 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1952 * We received a beacon _after_ association so
1953 * remove the session protection.
1955 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1956 &mvmvif
->time_event_data
);
1959 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1960 iwl_mvm_sf_update(mvm
, vif
, false);
1961 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1964 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
|
1966 * Send power command on every beacon change,
1967 * because we may have not enabled beacon abort yet.
1969 BSS_CHANGED_BEACON_INFO
)) {
1970 ret
= iwl_mvm_power_update_mac(mvm
);
1972 IWL_ERR(mvm
, "failed to update power mode\n");
1975 if (changes
& BSS_CHANGED_TXPOWER
) {
1976 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1978 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1981 if (changes
& BSS_CHANGED_CQM
) {
1982 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1983 /* reset cqm events tracking */
1984 mvmvif
->bf_data
.last_cqm_event
= 0;
1985 if (mvmvif
->bf_data
.bf_enabled
) {
1986 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1989 "failed to update CQM thresholds\n");
1993 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1994 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1995 iwl_mvm_configure_bcast_filter(mvm
);
1999 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
2000 struct ieee80211_vif
*vif
)
2002 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2003 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2007 * iwl_mvm_mac_ctxt_add() might read directly from the device
2008 * (the system time), so make sure it is available.
2010 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
2014 mutex_lock(&mvm
->mutex
);
2016 /* Send the beacon template */
2017 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
2022 * Re-calculate the tsf id, as the master-slave relations depend on the
2023 * beacon interval, which was not known when the AP interface was added.
2025 if (vif
->type
== NL80211_IFTYPE_AP
)
2026 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
2028 mvmvif
->ap_assoc_sta_count
= 0;
2030 /* Add the mac context */
2031 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
2035 /* Perform the binding */
2036 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2040 /* Send the bcast station. At this stage the TBTT and DTIM time events
2041 * are added and applied to the scheduler */
2042 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
2046 /* must be set before quota calculations */
2047 mvmvif
->ap_ibss_active
= true;
2049 /* power updated needs to be done before quotas */
2050 iwl_mvm_power_update_mac(mvm
);
2052 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
2054 goto out_quota_failed
;
2056 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2057 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2058 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2060 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
2062 iwl_mvm_bt_coex_vif_change(mvm
);
2064 /* we don't support TDLS during DCM */
2065 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2066 iwl_mvm_teardown_tdls_peers(mvm
);
2071 iwl_mvm_power_update_mac(mvm
);
2072 mvmvif
->ap_ibss_active
= false;
2073 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2075 iwl_mvm_binding_remove_vif(mvm
, vif
);
2077 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2079 mutex_unlock(&mvm
->mutex
);
2080 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
2084 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
2085 struct ieee80211_vif
*vif
)
2087 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2088 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2090 iwl_mvm_prepare_mac_removal(mvm
, vif
);
2092 mutex_lock(&mvm
->mutex
);
2094 /* Handle AP stop while in CSA */
2095 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
2096 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2097 &mvmvif
->time_event_data
);
2098 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
2099 mvmvif
->csa_countdown
= false;
2102 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
2103 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
2104 mvm
->csa_tx_block_bcn_timeout
= 0;
2107 mvmvif
->ap_ibss_active
= false;
2108 mvm
->ap_last_beacon_gp2
= 0;
2110 iwl_mvm_bt_coex_vif_change(mvm
);
2112 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
2114 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2115 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2116 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2118 iwl_mvm_update_quotas(mvm
, false, NULL
);
2119 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2120 iwl_mvm_binding_remove_vif(mvm
, vif
);
2122 iwl_mvm_power_update_mac(mvm
);
2124 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2126 mutex_unlock(&mvm
->mutex
);
2130 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
2131 struct ieee80211_vif
*vif
,
2132 struct ieee80211_bss_conf
*bss_conf
,
2135 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2137 /* Changes will be applied when the AP/IBSS is started */
2138 if (!mvmvif
->ap_ibss_active
)
2141 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
2142 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
2143 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
2144 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
2146 /* Need to send a new beacon template to the FW */
2147 if (changes
& BSS_CHANGED_BEACON
&&
2148 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
2149 IWL_WARN(mvm
, "Failed updating beacon data\n");
2151 if (changes
& BSS_CHANGED_TXPOWER
) {
2152 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2154 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2158 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
2159 struct ieee80211_vif
*vif
,
2160 struct ieee80211_bss_conf
*bss_conf
,
2163 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2166 * iwl_mvm_bss_info_changed_station() might call
2167 * iwl_mvm_protect_session(), which reads directly from
2168 * the device (the system time), so make sure it is available.
2170 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
2173 mutex_lock(&mvm
->mutex
);
2175 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
2176 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
2178 switch (vif
->type
) {
2179 case NL80211_IFTYPE_STATION
:
2180 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
2182 case NL80211_IFTYPE_AP
:
2183 case NL80211_IFTYPE_ADHOC
:
2184 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
2187 /* shouldn't happen */
2191 mutex_unlock(&mvm
->mutex
);
2192 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
2195 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
2196 struct ieee80211_vif
*vif
,
2197 struct ieee80211_scan_request
*hw_req
)
2199 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2202 if (hw_req
->req
.n_channels
== 0 ||
2203 hw_req
->req
.n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
2206 mutex_lock(&mvm
->mutex
);
2207 ret
= iwl_mvm_reg_scan_start(mvm
, vif
, &hw_req
->req
, &hw_req
->ies
);
2208 mutex_unlock(&mvm
->mutex
);
2213 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2214 struct ieee80211_vif
*vif
)
2216 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2218 mutex_lock(&mvm
->mutex
);
2220 /* Due to a race condition, it's possible that mac80211 asks
2221 * us to stop a hw_scan when it's already stopped. This can
2222 * happen, for instance, if we stopped the scan ourselves,
2223 * called ieee80211_scan_completed() and the userspace called
2224 * cancel scan scan before ieee80211_scan_work() could run.
2225 * To handle that, simply return if the scan is not running.
2227 if (mvm
->scan_status
& IWL_MVM_SCAN_REGULAR
)
2228 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
2230 mutex_unlock(&mvm
->mutex
);
2234 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2235 struct ieee80211_sta
*sta
, u16 tids
,
2237 enum ieee80211_frame_release_type reason
,
2240 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2242 /* Called when we need to transmit (a) frame(s) from mac80211 */
2244 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2245 tids
, more_data
, false);
2249 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2250 struct ieee80211_sta
*sta
, u16 tids
,
2252 enum ieee80211_frame_release_type reason
,
2255 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2257 /* Called when we need to transmit (a) frame(s) from agg queue */
2259 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2260 tids
, more_data
, true);
2263 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2264 struct ieee80211_vif
*vif
,
2265 enum sta_notify_cmd cmd
,
2266 struct ieee80211_sta
*sta
)
2268 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2269 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2270 unsigned long txqs
= 0, tids
= 0;
2273 spin_lock_bh(&mvmsta
->lock
);
2274 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2275 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
2277 if (tid_data
->state
!= IWL_AGG_ON
&&
2278 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2281 __set_bit(tid_data
->txq_id
, &txqs
);
2283 if (iwl_mvm_tid_queued(tid_data
) == 0)
2286 __set_bit(tid
, &tids
);
2290 case STA_NOTIFY_SLEEP
:
2291 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2292 ieee80211_sta_block_awake(hw
, sta
, true);
2294 for_each_set_bit(tid
, &tids
, IWL_MAX_TID_COUNT
)
2295 ieee80211_sta_set_buffered(sta
, tid
, true);
2298 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, true);
2300 * The fw updates the STA to be asleep. Tx packets on the Tx
2301 * queues to this station will not be transmitted. The fw will
2302 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2305 case STA_NOTIFY_AWAKE
:
2306 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2310 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, false);
2311 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2316 spin_unlock_bh(&mvmsta
->lock
);
2319 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2320 struct ieee80211_vif
*vif
,
2321 struct ieee80211_sta
*sta
)
2323 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2324 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2327 * This is called before mac80211 does RCU synchronisation,
2328 * so here we already invalidate our internal RCU-protected
2329 * station pointer. The rest of the code will thus no longer
2330 * be able to find the station this way, and we don't rely
2331 * on further RCU synchronisation after the sta_state()
2332 * callback deleted the station.
2334 mutex_lock(&mvm
->mutex
);
2335 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2336 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2339 mutex_unlock(&mvm
->mutex
);
2342 static void iwl_mvm_check_uapsd(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
2345 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
))
2348 if (vif
->p2p
&& !iwl_mvm_is_p2p_standalone_uapsd_supported(mvm
)) {
2349 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2354 (iwlwifi_mod_params
.uapsd_disable
& IWL_DISABLE_UAPSD_BSS
)) {
2355 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2359 vif
->driver_flags
|= IEEE80211_VIF_SUPPORTS_UAPSD
;
2363 iwl_mvm_tdls_check_trigger(struct iwl_mvm
*mvm
,
2364 struct ieee80211_vif
*vif
, u8
*peer_addr
,
2365 enum nl80211_tdls_operation action
)
2367 struct iwl_fw_dbg_trigger_tlv
*trig
;
2368 struct iwl_fw_dbg_trigger_tdls
*tdls_trig
;
2370 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_TDLS
))
2373 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_TDLS
);
2374 tdls_trig
= (void *)trig
->data
;
2375 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
2378 if (!(tdls_trig
->action_bitmap
& BIT(action
)))
2381 if (tdls_trig
->peer_mode
&&
2382 memcmp(tdls_trig
->peer
, peer_addr
, ETH_ALEN
) != 0)
2385 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
2386 "TDLS event occurred, peer %pM, action %d",
2390 static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm
*mvm
,
2391 struct iwl_mvm_sta
*mvm_sta
)
2393 struct iwl_mvm_tid_data
*tid_data
;
2394 struct sk_buff
*skb
;
2397 spin_lock_bh(&mvm_sta
->lock
);
2398 for (i
= 0; i
<= IWL_MAX_TID_COUNT
; i
++) {
2399 tid_data
= &mvm_sta
->tid_data
[i
];
2400 while ((skb
= __skb_dequeue(&tid_data
->deferred_tx_frames
)))
2401 ieee80211_free_txskb(mvm
->hw
, skb
);
2403 spin_unlock_bh(&mvm_sta
->lock
);
2406 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2407 struct ieee80211_vif
*vif
,
2408 struct ieee80211_sta
*sta
,
2409 enum ieee80211_sta_state old_state
,
2410 enum ieee80211_sta_state new_state
)
2412 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2413 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2416 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2417 sta
->addr
, old_state
, new_state
);
2419 /* this would be a mac80211 bug ... but don't crash */
2420 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2423 /* if a STA is being removed, reuse its ID */
2424 flush_work(&mvm
->sta_drained_wk
);
2427 * If we are in a STA removal flow and in DQA mode:
2429 * This is after the sync_rcu part, so the queues have already been
2430 * flushed. No more TXs on their way in mac80211's path, and no more in
2432 * Also, we won't be getting any new TX frames for this station.
2433 * What we might have are deferred TX frames that need to be taken care
2436 * Drop any still-queued deferred-frame before removing the STA, and
2437 * make sure the worker is no longer handling frames for this STA.
2439 if (old_state
== IEEE80211_STA_NONE
&&
2440 new_state
== IEEE80211_STA_NOTEXIST
&&
2441 iwl_mvm_is_dqa_supported(mvm
)) {
2442 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2444 iwl_mvm_purge_deferred_tx_frames(mvm
, mvm_sta
);
2445 flush_work(&mvm
->add_stream_wk
);
2448 * No need to make sure deferred TX indication is off since the
2449 * worker will already remove it if it was on
2453 mutex_lock(&mvm
->mutex
);
2454 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2455 new_state
== IEEE80211_STA_NONE
) {
2457 * Firmware bug - it'll crash if the beacon interval is less
2458 * than 16. We can't avoid connecting at all, so refuse the
2459 * station state change, this will cause mac80211 to abandon
2460 * attempts to connect to this AP, and eventually wpa_s will
2461 * blacklist the AP...
2463 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2464 vif
->bss_conf
.beacon_int
< 16) {
2466 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2467 sta
->addr
, vif
->bss_conf
.beacon_int
);
2474 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2475 IWL_MVM_TDLS_STA_COUNT
||
2476 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2477 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2482 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2483 if (sta
->tdls
&& ret
== 0) {
2484 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2485 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2486 NL80211_TDLS_SETUP
);
2488 } else if (old_state
== IEEE80211_STA_NONE
&&
2489 new_state
== IEEE80211_STA_AUTH
) {
2491 * EBS may be disabled due to previous failures reported by FW.
2492 * Reset EBS status here assuming environment has been changed.
2494 mvm
->last_ebs_successful
= true;
2495 iwl_mvm_check_uapsd(mvm
, vif
, sta
->addr
);
2497 } else if (old_state
== IEEE80211_STA_AUTH
&&
2498 new_state
== IEEE80211_STA_ASSOC
) {
2499 if (vif
->type
== NL80211_IFTYPE_AP
) {
2500 mvmvif
->ap_assoc_sta_count
++;
2501 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2503 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2505 iwl_mvm_rs_rate_init(mvm
, sta
,
2506 mvmvif
->phy_ctxt
->channel
->band
,
2508 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2509 new_state
== IEEE80211_STA_AUTHORIZED
) {
2511 /* we don't support TDLS during DCM */
2512 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2513 iwl_mvm_teardown_tdls_peers(mvm
);
2516 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2517 NL80211_TDLS_ENABLE_LINK
);
2519 /* enable beacon filtering */
2520 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2522 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2523 new_state
== IEEE80211_STA_ASSOC
) {
2524 /* disable beacon filtering */
2525 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2527 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2528 new_state
== IEEE80211_STA_AUTH
) {
2529 if (vif
->type
== NL80211_IFTYPE_AP
) {
2530 mvmvif
->ap_assoc_sta_count
--;
2531 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2534 } else if (old_state
== IEEE80211_STA_AUTH
&&
2535 new_state
== IEEE80211_STA_NONE
) {
2537 } else if (old_state
== IEEE80211_STA_NONE
&&
2538 new_state
== IEEE80211_STA_NOTEXIST
) {
2539 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2541 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2542 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2543 NL80211_TDLS_DISABLE_LINK
);
2549 mutex_unlock(&mvm
->mutex
);
2551 if (sta
->tdls
&& ret
== 0) {
2552 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2553 new_state
== IEEE80211_STA_NONE
)
2554 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2555 else if (old_state
== IEEE80211_STA_NONE
&&
2556 new_state
== IEEE80211_STA_NOTEXIST
)
2557 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2563 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2565 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2567 mvm
->rts_threshold
= value
;
2572 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2573 struct ieee80211_vif
*vif
,
2574 struct ieee80211_sta
*sta
, u32 changed
)
2576 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2578 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2579 changed
& IEEE80211_RC_NSS_CHANGED
)
2580 iwl_mvm_sf_update(mvm
, vif
, false);
2583 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2584 struct ieee80211_vif
*vif
, u16 ac
,
2585 const struct ieee80211_tx_queue_params
*params
)
2587 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2588 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2590 mvmvif
->queue_params
[ac
] = *params
;
2593 * No need to update right away, we'll get BSS_CHANGED_QOS
2594 * The exception is P2P_DEVICE interface which needs immediate update.
2596 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2599 mutex_lock(&mvm
->mutex
);
2600 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2601 mutex_unlock(&mvm
->mutex
);
2607 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2608 struct ieee80211_vif
*vif
)
2610 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2611 u32 duration
= IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
;
2612 u32 min_duration
= IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
;
2614 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2618 * iwl_mvm_protect_session() reads directly from the device
2619 * (the system time), so make sure it is available.
2621 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2624 mutex_lock(&mvm
->mutex
);
2625 /* Try really hard to protect the session and hear a beacon */
2626 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2627 mutex_unlock(&mvm
->mutex
);
2629 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2632 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2633 struct ieee80211_vif
*vif
,
2634 struct cfg80211_sched_scan_request
*req
,
2635 struct ieee80211_scan_ies
*ies
)
2637 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2641 mutex_lock(&mvm
->mutex
);
2643 if (!vif
->bss_conf
.idle
) {
2648 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, req
, ies
, IWL_MVM_SCAN_SCHED
);
2651 mutex_unlock(&mvm
->mutex
);
2655 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2656 struct ieee80211_vif
*vif
)
2658 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2661 mutex_lock(&mvm
->mutex
);
2663 /* Due to a race condition, it's possible that mac80211 asks
2664 * us to stop a sched_scan when it's already stopped. This
2665 * can happen, for instance, if we stopped the scan ourselves,
2666 * called ieee80211_sched_scan_stopped() and the userspace called
2667 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2668 * could run. To handle this, simply return if the scan is
2671 if (!(mvm
->scan_status
& IWL_MVM_SCAN_SCHED
)) {
2672 mutex_unlock(&mvm
->mutex
);
2676 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, false);
2677 mutex_unlock(&mvm
->mutex
);
2678 iwl_mvm_wait_for_async_handlers(mvm
);
2683 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2684 enum set_key_cmd cmd
,
2685 struct ieee80211_vif
*vif
,
2686 struct ieee80211_sta
*sta
,
2687 struct ieee80211_key_conf
*key
)
2689 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2690 struct iwl_mvm_sta
*mvmsta
;
2691 struct iwl_mvm_key_pn
*ptk_pn
;
2692 int keyidx
= key
->keyidx
;
2696 if (iwlwifi_mod_params
.sw_crypto
) {
2697 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2701 switch (key
->cipher
) {
2702 case WLAN_CIPHER_SUITE_TKIP
:
2703 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2704 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2706 case WLAN_CIPHER_SUITE_CCMP
:
2707 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2709 case WLAN_CIPHER_SUITE_AES_CMAC
:
2710 WARN_ON_ONCE(!ieee80211_hw_check(hw
, MFP_CAPABLE
));
2712 case WLAN_CIPHER_SUITE_WEP40
:
2713 case WLAN_CIPHER_SUITE_WEP104
:
2714 /* For non-client mode, only use WEP keys for TX as we probably
2715 * don't have a station yet anyway and would then have to keep
2716 * track of the keys, linking them to each of the clients/peers
2717 * as they appear. For now, don't do that, for performance WEP
2718 * offload doesn't really matter much, but we need it for some
2719 * other offload features in client mode.
2721 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2725 /* currently FW supports only one optional cipher scheme */
2726 if (hw
->n_cipher_schemes
&&
2727 hw
->cipher_schemes
->cipher
== key
->cipher
)
2728 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2733 mutex_lock(&mvm
->mutex
);
2737 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2738 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2740 * GTK on AP interface is a TX-only key, return 0;
2741 * on IBSS they're per-station and because we're lazy
2742 * we don't support them for RX, so do the same.
2743 * CMAC in AP/IBSS modes must be done in software.
2745 if (key
->cipher
== WLAN_CIPHER_SUITE_AES_CMAC
)
2749 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2753 /* During FW restart, in order to restore the state as it was,
2754 * don't try to reprogram keys we previously failed for.
2756 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2757 key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2758 IWL_DEBUG_MAC80211(mvm
,
2759 "skip invalid idx key programming during restart\n");
2764 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2765 sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2766 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2767 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2768 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
)) {
2769 struct ieee80211_key_seq seq
;
2772 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2773 WARN_ON(rcu_access_pointer(mvmsta
->ptk_pn
[keyidx
]));
2774 ptk_pn
= kzalloc(sizeof(*ptk_pn
) +
2775 mvm
->trans
->num_rx_queues
*
2776 sizeof(ptk_pn
->q
[0]),
2783 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2784 ieee80211_get_key_rx_seq(key
, tid
, &seq
);
2785 for (q
= 0; q
< mvm
->trans
->num_rx_queues
; q
++)
2786 memcpy(ptk_pn
->q
[q
].pn
[tid
],
2788 IEEE80211_CCMP_PN_LEN
);
2791 rcu_assign_pointer(mvmsta
->ptk_pn
[keyidx
], ptk_pn
);
2794 /* in HW restart reuse the index, otherwise request a new one */
2795 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
2796 key_offset
= key
->hw_key_idx
;
2798 key_offset
= STA_KEY_IDX_INVALID
;
2800 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2801 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, key_offset
);
2803 IWL_WARN(mvm
, "set key failed\n");
2805 * can't add key for RX, but we don't need it
2806 * in the device for TX so still return 0
2808 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2814 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2819 if (sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2820 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2821 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2822 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
)) {
2823 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2824 ptk_pn
= rcu_dereference_protected(
2825 mvmsta
->ptk_pn
[keyidx
],
2826 lockdep_is_held(&mvm
->mutex
));
2827 RCU_INIT_POINTER(mvmsta
->ptk_pn
[keyidx
], NULL
);
2829 kfree_rcu(ptk_pn
, rcu_head
);
2832 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2833 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2839 mutex_unlock(&mvm
->mutex
);
2843 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2844 struct ieee80211_vif
*vif
,
2845 struct ieee80211_key_conf
*keyconf
,
2846 struct ieee80211_sta
*sta
,
2847 u32 iv32
, u16
*phase1key
)
2849 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2851 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2854 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2858 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2859 struct iwl_rx_packet
*pkt
, void *data
)
2861 struct iwl_mvm
*mvm
=
2862 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2863 struct iwl_hs20_roc_res
*resp
;
2864 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2865 struct iwl_mvm_time_event_data
*te_data
= data
;
2867 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2870 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2871 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2875 resp
= (void *)pkt
->data
;
2878 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2879 resp
->status
, resp
->event_unique_id
);
2881 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2882 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2885 spin_lock_bh(&mvm
->time_event_lock
);
2886 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2887 spin_unlock_bh(&mvm
->time_event_lock
);
2892 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2893 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2894 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2895 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2896 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
2897 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2898 struct ieee80211_channel
*channel
,
2899 struct ieee80211_vif
*vif
,
2902 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2903 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2904 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2905 static const u16 time_event_response
[] = { HOT_SPOT_CMD
};
2906 struct iwl_notification_wait wait_time_event
;
2907 u32 dtim_interval
= vif
->bss_conf
.dtim_period
*
2908 vif
->bss_conf
.beacon_int
;
2910 struct iwl_hs20_roc_req aux_roc_req
= {
2911 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2913 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2914 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2915 /* Set the channel info data */
2916 .channel_info
.band
= (channel
->band
== NL80211_BAND_2GHZ
) ?
2917 PHY_BAND_24
: PHY_BAND_5
,
2918 .channel_info
.channel
= channel
->hw_value
,
2919 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2920 /* Set the time and duration */
2921 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2924 delay
= AUX_ROC_MIN_DELAY
;
2925 req_dur
= MSEC_TO_TU(duration
);
2928 * If we are associated we want the delay time to be at least one
2929 * dtim interval so that the FW can wait until after the DTIM and
2930 * then start the time event, this will potentially allow us to
2931 * remain off-channel for the max duration.
2932 * Since we want to use almost a whole dtim interval we would also
2933 * like the delay to be for 2-3 dtim intervals, in case there are
2934 * other time events with higher priority.
2936 if (vif
->bss_conf
.assoc
) {
2937 delay
= min_t(u32
, dtim_interval
* 3, AUX_ROC_MAX_DELAY
);
2938 /* We cannot remain off-channel longer than the DTIM interval */
2939 if (dtim_interval
<= req_dur
) {
2940 req_dur
= dtim_interval
- AUX_ROC_SAFETY_BUFFER
;
2941 if (req_dur
<= AUX_ROC_MIN_DURATION
)
2942 req_dur
= dtim_interval
-
2943 AUX_ROC_MIN_SAFETY_BUFFER
;
2947 aux_roc_req
.duration
= cpu_to_le32(req_dur
);
2948 aux_roc_req
.apply_time_max_delay
= cpu_to_le32(delay
);
2951 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
2952 channel
->hw_value
, req_dur
, duration
, delay
,
2954 /* Set the node address */
2955 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2957 lockdep_assert_held(&mvm
->mutex
);
2959 spin_lock_bh(&mvm
->time_event_lock
);
2961 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
2962 spin_unlock_bh(&mvm
->time_event_lock
);
2967 te_data
->duration
= duration
;
2968 te_data
->id
= HOT_SPOT_CMD
;
2970 spin_unlock_bh(&mvm
->time_event_lock
);
2973 * Use a notification wait, which really just processes the
2974 * command response and doesn't wait for anything, in order
2975 * to be able to process the response and get the UID inside
2976 * the RX path. Using CMD_WANT_SKB doesn't work because it
2977 * stores the buffer and then wakes up this thread, by which
2978 * time another notification (that the time event started)
2979 * might already be processed unsuccessfully.
2981 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2982 time_event_response
,
2983 ARRAY_SIZE(time_event_response
),
2984 iwl_mvm_rx_aux_roc
, te_data
);
2986 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2990 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2991 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2995 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2996 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2997 /* should never fail */
3002 spin_lock_bh(&mvm
->time_event_lock
);
3003 iwl_mvm_te_clear_data(mvm
, te_data
);
3004 spin_unlock_bh(&mvm
->time_event_lock
);
3010 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
3011 struct ieee80211_vif
*vif
,
3012 struct ieee80211_channel
*channel
,
3014 enum ieee80211_roc_type type
)
3016 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3017 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3018 struct cfg80211_chan_def chandef
;
3019 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3022 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
3025 flush_work(&mvm
->roc_done_wk
);
3027 mutex_lock(&mvm
->mutex
);
3029 switch (vif
->type
) {
3030 case NL80211_IFTYPE_STATION
:
3031 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3032 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
)) {
3033 /* Use aux roc framework (HS20) */
3034 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
3038 IWL_ERR(mvm
, "hotspot not supported\n");
3041 case NL80211_IFTYPE_P2P_DEVICE
:
3045 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
3050 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
3051 phy_ctxt
= &mvm
->phy_ctxts
[i
];
3052 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
3055 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
3057 * Unbind the P2P_DEVICE from the current PHY context,
3058 * and if the PHY context is not used remove it.
3060 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3061 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3064 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3066 /* Bind the P2P_DEVICE to the current PHY Context */
3067 mvmvif
->phy_ctxt
= phy_ctxt
;
3069 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3070 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3073 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3074 goto schedule_time_event
;
3078 /* Need to update the PHY context only if the ROC channel changed */
3079 if (channel
== mvmvif
->phy_ctxt
->channel
)
3080 goto schedule_time_event
;
3082 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
3085 * Change the PHY context configuration as it is currently referenced
3086 * only by the P2P Device MAC
3088 if (mvmvif
->phy_ctxt
->ref
== 1) {
3089 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
3095 * The PHY context is shared with other MACs. Need to remove the
3096 * P2P Device from the binding, allocate an new PHY context and
3097 * create a new binding
3099 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3105 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
3108 IWL_ERR(mvm
, "Failed to change PHY context\n");
3112 /* Unbind the P2P_DEVICE from the current PHY context */
3113 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3114 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3117 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3119 /* Bind the P2P_DEVICE to the new allocated PHY context */
3120 mvmvif
->phy_ctxt
= phy_ctxt
;
3122 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3123 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3126 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3129 schedule_time_event
:
3130 /* Schedule the time events */
3131 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
3134 mutex_unlock(&mvm
->mutex
);
3135 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3139 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
3141 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3143 IWL_DEBUG_MAC80211(mvm
, "enter\n");
3145 mutex_lock(&mvm
->mutex
);
3146 iwl_mvm_stop_roc(mvm
);
3147 mutex_unlock(&mvm
->mutex
);
3149 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3153 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
3154 struct ieee80211_chanctx_conf
*ctx
)
3156 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3157 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3160 lockdep_assert_held(&mvm
->mutex
);
3162 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
3164 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3170 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3171 ctx
->rx_chains_static
,
3172 ctx
->rx_chains_dynamic
);
3174 IWL_ERR(mvm
, "Failed to add PHY context\n");
3178 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
3179 *phy_ctxt_id
= phy_ctxt
->id
;
3184 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
3185 struct ieee80211_chanctx_conf
*ctx
)
3187 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3190 mutex_lock(&mvm
->mutex
);
3191 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
3192 mutex_unlock(&mvm
->mutex
);
3197 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
3198 struct ieee80211_chanctx_conf
*ctx
)
3200 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3201 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3203 lockdep_assert_held(&mvm
->mutex
);
3205 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
3208 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
3209 struct ieee80211_chanctx_conf
*ctx
)
3211 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3213 mutex_lock(&mvm
->mutex
);
3214 __iwl_mvm_remove_chanctx(mvm
, ctx
);
3215 mutex_unlock(&mvm
->mutex
);
3218 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
3219 struct ieee80211_chanctx_conf
*ctx
,
3222 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3223 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3224 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3226 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
3227 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
3228 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
3229 IEEE80211_CHANCTX_CHANGE_RADAR
|
3230 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
3231 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3232 phy_ctxt
->ref
, changed
))
3235 mutex_lock(&mvm
->mutex
);
3236 iwl_mvm_bt_coex_vif_change(mvm
);
3237 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3238 ctx
->rx_chains_static
,
3239 ctx
->rx_chains_dynamic
);
3240 mutex_unlock(&mvm
->mutex
);
3243 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
3244 struct ieee80211_vif
*vif
,
3245 struct ieee80211_chanctx_conf
*ctx
,
3246 bool switching_chanctx
)
3248 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3249 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3250 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3253 lockdep_assert_held(&mvm
->mutex
);
3255 mvmvif
->phy_ctxt
= phy_ctxt
;
3257 switch (vif
->type
) {
3258 case NL80211_IFTYPE_AP
:
3259 /* only needed if we're switching chanctx (i.e. during CSA) */
3260 if (switching_chanctx
) {
3261 mvmvif
->ap_ibss_active
= true;
3264 case NL80211_IFTYPE_ADHOC
:
3266 * The AP binding flow is handled as part of the start_ap flow
3267 * (in bss_info_changed), similarly for IBSS.
3271 case NL80211_IFTYPE_STATION
:
3273 case NL80211_IFTYPE_MONITOR
:
3274 /* always disable PS when a monitor interface is active */
3275 mvmvif
->ps_disabled
= true;
3282 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3287 * Power state must be updated before quotas,
3288 * otherwise fw will complain.
3290 iwl_mvm_power_update_mac(mvm
);
3292 /* Setting the quota at this stage is only required for monitor
3293 * interfaces. For the other types, the bss_info changed flow
3294 * will handle quota settings.
3296 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
3297 mvmvif
->monitor_active
= true;
3298 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
3300 goto out_remove_binding
;
3302 ret
= iwl_mvm_add_snif_sta(mvm
, vif
);
3304 goto out_remove_binding
;
3308 /* Handle binding during CSA */
3309 if (vif
->type
== NL80211_IFTYPE_AP
) {
3310 iwl_mvm_update_quotas(mvm
, false, NULL
);
3311 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3314 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3315 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
3317 /* iwl_mvm_protect_session() reads directly from the
3318 * device (the system time), so make sure it is
3321 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3323 goto out_remove_binding
;
3325 /* Protect the session to make sure we hear the first
3326 * beacon on the new channel.
3328 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
3329 vif
->bss_conf
.beacon_int
/ 2,
3332 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3334 iwl_mvm_update_quotas(mvm
, false, NULL
);
3340 iwl_mvm_binding_remove_vif(mvm
, vif
);
3341 iwl_mvm_power_update_mac(mvm
);
3344 mvmvif
->phy_ctxt
= NULL
;
3347 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
3348 struct ieee80211_vif
*vif
,
3349 struct ieee80211_chanctx_conf
*ctx
)
3351 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3354 mutex_lock(&mvm
->mutex
);
3355 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
3356 mutex_unlock(&mvm
->mutex
);
3361 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
3362 struct ieee80211_vif
*vif
,
3363 struct ieee80211_chanctx_conf
*ctx
,
3364 bool switching_chanctx
)
3366 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3367 struct ieee80211_vif
*disabled_vif
= NULL
;
3369 lockdep_assert_held(&mvm
->mutex
);
3371 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
3373 switch (vif
->type
) {
3374 case NL80211_IFTYPE_ADHOC
:
3376 case NL80211_IFTYPE_MONITOR
:
3377 mvmvif
->monitor_active
= false;
3378 mvmvif
->ps_disabled
= false;
3379 iwl_mvm_rm_snif_sta(mvm
, vif
);
3381 case NL80211_IFTYPE_AP
:
3382 /* This part is triggered only during CSA */
3383 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
3386 mvmvif
->csa_countdown
= false;
3388 /* Set CS bit on all the stations */
3389 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
3391 /* Save blocked iface, the timeout is set on the next beacon */
3392 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
3394 mvmvif
->ap_ibss_active
= false;
3396 case NL80211_IFTYPE_STATION
:
3397 if (!switching_chanctx
)
3402 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
3408 iwl_mvm_update_quotas(mvm
, false, disabled_vif
);
3409 iwl_mvm_binding_remove_vif(mvm
, vif
);
3412 mvmvif
->phy_ctxt
= NULL
;
3413 iwl_mvm_power_update_mac(mvm
);
3416 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
3417 struct ieee80211_vif
*vif
,
3418 struct ieee80211_chanctx_conf
*ctx
)
3420 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3422 mutex_lock(&mvm
->mutex
);
3423 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
3424 mutex_unlock(&mvm
->mutex
);
3428 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
3429 struct ieee80211_vif_chanctx_switch
*vifs
)
3433 mutex_lock(&mvm
->mutex
);
3434 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3435 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
3437 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
3439 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
3443 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3447 "failed to assign new_ctx during channel switch\n");
3451 /* we don't support TDLS during DCM - can be caused by channel switch */
3452 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3453 iwl_mvm_teardown_tdls_peers(mvm
);
3458 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3461 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3462 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3466 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3468 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3475 /* things keep failing, better restart the hw */
3476 iwl_mvm_nic_restart(mvm
, false);
3479 mutex_unlock(&mvm
->mutex
);
3485 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3486 struct ieee80211_vif_chanctx_switch
*vifs
)
3490 mutex_lock(&mvm
->mutex
);
3491 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3493 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3497 "failed to assign new_ctx during channel switch\n");
3504 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3506 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3513 /* things keep failing, better restart the hw */
3514 iwl_mvm_nic_restart(mvm
, false);
3517 mutex_unlock(&mvm
->mutex
);
3522 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3523 struct ieee80211_vif_chanctx_switch
*vifs
,
3525 enum ieee80211_chanctx_switch_mode mode
)
3527 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3530 /* we only support a single-vif right now */
3535 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3536 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3538 case CHANCTX_SWMODE_REASSIGN_VIF
:
3539 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3549 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3550 struct ieee80211_sta
*sta
,
3553 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3554 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
3556 if (!mvm_sta
|| !mvm_sta
->vif
) {
3557 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3561 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3564 #ifdef CONFIG_NL80211_TESTMODE
3565 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3566 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3567 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3568 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3571 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3572 struct ieee80211_vif
*vif
,
3573 void *data
, int len
)
3575 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3579 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3583 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3586 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3587 case IWL_MVM_TM_CMD_SET_NOA
:
3588 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3589 !vif
->bss_conf
.enable_beacon
||
3590 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3593 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3594 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3597 mvm
->noa_duration
= noa_duration
;
3600 return iwl_mvm_update_quotas(mvm
, false, NULL
);
3601 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3602 /* must be associated client vif - ignore authorized */
3603 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3604 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3605 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3608 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3609 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3610 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3616 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3617 struct ieee80211_vif
*vif
,
3618 void *data
, int len
)
3620 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3623 mutex_lock(&mvm
->mutex
);
3624 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3625 mutex_unlock(&mvm
->mutex
);
3631 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3632 struct ieee80211_vif
*vif
,
3633 struct ieee80211_channel_switch
*chsw
)
3635 /* By implementing this operation, we prevent mac80211 from
3636 * starting its own channel switch timer, so that we can call
3637 * ieee80211_chswitch_done() ourselves at the right time
3638 * (which is when the absence time event starts).
3641 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3642 "dummy channel switch op\n");
3645 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3646 struct ieee80211_vif
*vif
,
3647 struct ieee80211_channel_switch
*chsw
)
3649 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3650 struct ieee80211_vif
*csa_vif
;
3651 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3655 mutex_lock(&mvm
->mutex
);
3657 mvmvif
->csa_failed
= false;
3659 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3660 chsw
->chandef
.center_freq1
);
3662 iwl_fw_dbg_trigger_simple_stop(mvm
, vif
, FW_DBG_TRIGGER_CHANNEL_SWITCH
);
3664 switch (vif
->type
) {
3665 case NL80211_IFTYPE_AP
:
3667 rcu_dereference_protected(mvm
->csa_vif
,
3668 lockdep_is_held(&mvm
->mutex
));
3669 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3670 "Another CSA is already in progress")) {
3675 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3677 if (WARN_ONCE(mvmvif
->csa_countdown
,
3678 "Previous CSA countdown didn't complete")) {
3684 case NL80211_IFTYPE_STATION
:
3685 if (mvmvif
->lqm_active
)
3686 iwl_mvm_send_lqm_cmd(vif
,
3687 LQM_CMD_OPERATION_STOP_MEASUREMENT
,
3690 /* Schedule the time event to a bit before beacon 1,
3691 * to make sure we're in the new channel when the
3694 apply_time
= chsw
->device_timestamp
+
3695 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3696 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3699 iwl_mvm_csa_client_absent(mvm
, vif
);
3701 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3703 if (mvmvif
->bf_data
.bf_enabled
) {
3704 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3714 mvmvif
->ps_disabled
= true;
3716 ret
= iwl_mvm_power_update_ps(mvm
);
3720 /* we won't be on this channel any longer */
3721 iwl_mvm_teardown_tdls_peers(mvm
);
3724 mutex_unlock(&mvm
->mutex
);
3729 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3730 struct ieee80211_vif
*vif
)
3732 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3733 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3736 mutex_lock(&mvm
->mutex
);
3738 if (mvmvif
->csa_failed
) {
3739 mvmvif
->csa_failed
= false;
3744 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3745 struct iwl_mvm_sta
*mvmsta
;
3747 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3750 if (WARN_ON(!mvmsta
)) {
3755 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3757 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3759 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3763 iwl_mvm_stop_session_protection(mvm
, vif
);
3766 mvmvif
->ps_disabled
= false;
3768 ret
= iwl_mvm_power_update_ps(mvm
);
3771 mutex_unlock(&mvm
->mutex
);
3776 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3777 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3779 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3780 struct iwl_mvm_vif
*mvmvif
;
3781 struct iwl_mvm_sta
*mvmsta
;
3782 struct ieee80211_sta
*sta
;
3786 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3789 /* Make sure we're done with the deferred traffic before flushing */
3790 if (iwl_mvm_is_dqa_supported(mvm
))
3791 flush_work(&mvm
->add_stream_wk
);
3793 mutex_lock(&mvm
->mutex
);
3794 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3796 /* flush the AP-station and all TDLS peers */
3797 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3798 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3799 lockdep_is_held(&mvm
->mutex
));
3800 if (IS_ERR_OR_NULL(sta
))
3803 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3804 if (mvmsta
->vif
!= vif
)
3807 /* make sure only TDLS peers or the AP are flushed */
3808 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3810 msk
|= mvmsta
->tfd_queue_msk
;
3814 if (iwl_mvm_flush_tx_path(mvm
, msk
, 0))
3815 IWL_ERR(mvm
, "flush request fail\n");
3816 mutex_unlock(&mvm
->mutex
);
3818 mutex_unlock(&mvm
->mutex
);
3820 /* this can take a while, and we may need/want other operations
3821 * to succeed while doing this, so do it without the mutex held
3823 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3827 static int iwl_mvm_mac_get_survey(struct ieee80211_hw
*hw
, int idx
,
3828 struct survey_info
*survey
)
3830 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3833 memset(survey
, 0, sizeof(*survey
));
3835 /* only support global statistics right now */
3839 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3840 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3843 mutex_lock(&mvm
->mutex
);
3845 if (mvm
->ucode_loaded
) {
3846 ret
= iwl_mvm_request_statistics(mvm
, false);
3851 survey
->filled
= SURVEY_INFO_TIME
|
3852 SURVEY_INFO_TIME_RX
|
3853 SURVEY_INFO_TIME_TX
|
3854 SURVEY_INFO_TIME_SCAN
;
3855 survey
->time
= mvm
->accu_radio_stats
.on_time_rf
+
3856 mvm
->radio_stats
.on_time_rf
;
3857 do_div(survey
->time
, USEC_PER_MSEC
);
3859 survey
->time_rx
= mvm
->accu_radio_stats
.rx_time
+
3860 mvm
->radio_stats
.rx_time
;
3861 do_div(survey
->time_rx
, USEC_PER_MSEC
);
3863 survey
->time_tx
= mvm
->accu_radio_stats
.tx_time
+
3864 mvm
->radio_stats
.tx_time
;
3865 do_div(survey
->time_tx
, USEC_PER_MSEC
);
3867 survey
->time_scan
= mvm
->accu_radio_stats
.on_time_scan
+
3868 mvm
->radio_stats
.on_time_scan
;
3869 do_div(survey
->time_scan
, USEC_PER_MSEC
);
3873 mutex_unlock(&mvm
->mutex
);
3877 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw
*hw
,
3878 struct ieee80211_vif
*vif
,
3879 struct ieee80211_sta
*sta
,
3880 struct station_info
*sinfo
)
3882 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3883 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3884 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3886 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3887 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3890 /* if beacon filtering isn't on mac80211 does it anyway */
3891 if (!(vif
->driver_flags
& IEEE80211_VIF_BEACON_FILTER
))
3894 if (!vif
->bss_conf
.assoc
)
3897 mutex_lock(&mvm
->mutex
);
3899 if (mvmvif
->ap_sta_id
!= mvmsta
->sta_id
)
3902 if (iwl_mvm_request_statistics(mvm
, false))
3905 sinfo
->rx_beacon
= mvmvif
->beacon_stats
.num_beacons
+
3906 mvmvif
->beacon_stats
.accu_num_beacons
;
3907 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_RX
);
3908 if (mvmvif
->beacon_stats
.avg_signal
) {
3909 /* firmware only reports a value after RXing a few beacons */
3910 sinfo
->rx_beacon_signal_avg
= mvmvif
->beacon_stats
.avg_signal
;
3911 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG
);
3914 mutex_unlock(&mvm
->mutex
);
3917 static void iwl_mvm_event_mlme_callback(struct iwl_mvm
*mvm
,
3918 struct ieee80211_vif
*vif
,
3919 const struct ieee80211_event
*event
)
3921 #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
3923 if ((_cnt) && --(_cnt)) \
3925 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
3928 struct iwl_fw_dbg_trigger_tlv
*trig
;
3929 struct iwl_fw_dbg_trigger_mlme
*trig_mlme
;
3931 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_MLME
))
3934 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_MLME
);
3935 trig_mlme
= (void *)trig
->data
;
3936 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
3939 if (event
->u
.mlme
.data
== ASSOC_EVENT
) {
3940 if (event
->u
.mlme
.status
== MLME_DENIED
)
3941 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3942 trig_mlme
->stop_assoc_denied
,
3943 "DENIED ASSOC: reason %d",
3944 event
->u
.mlme
.reason
);
3945 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
3946 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3947 trig_mlme
->stop_assoc_timeout
,
3949 } else if (event
->u
.mlme
.data
== AUTH_EVENT
) {
3950 if (event
->u
.mlme
.status
== MLME_DENIED
)
3951 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3952 trig_mlme
->stop_auth_denied
,
3953 "DENIED AUTH: reason %d",
3954 event
->u
.mlme
.reason
);
3955 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
3956 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3957 trig_mlme
->stop_auth_timeout
,
3959 } else if (event
->u
.mlme
.data
== DEAUTH_RX_EVENT
) {
3960 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3961 trig_mlme
->stop_rx_deauth
,
3962 "DEAUTH RX %d", event
->u
.mlme
.reason
);
3963 } else if (event
->u
.mlme
.data
== DEAUTH_TX_EVENT
) {
3964 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3965 trig_mlme
->stop_tx_deauth
,
3966 "DEAUTH TX %d", event
->u
.mlme
.reason
);
3968 #undef CHECK_MLME_TRIGGER
3971 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm
*mvm
,
3972 struct ieee80211_vif
*vif
,
3973 const struct ieee80211_event
*event
)
3975 struct iwl_fw_dbg_trigger_tlv
*trig
;
3976 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
3978 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
3981 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
3982 ba_trig
= (void *)trig
->data
;
3983 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
3986 if (!(le16_to_cpu(ba_trig
->rx_bar
) & BIT(event
->u
.ba
.tid
)))
3989 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
3990 "BAR received from %pM, tid %d, ssn %d",
3991 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
,
3996 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm
*mvm
,
3997 struct ieee80211_vif
*vif
,
3998 const struct ieee80211_event
*event
)
4000 struct iwl_fw_dbg_trigger_tlv
*trig
;
4001 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4003 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4006 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4007 ba_trig
= (void *)trig
->data
;
4008 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4011 if (!(le16_to_cpu(ba_trig
->frame_timeout
) & BIT(event
->u
.ba
.tid
)))
4014 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4015 "Frame from %pM timed out, tid %d",
4016 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
);
4019 static void iwl_mvm_mac_event_callback(struct ieee80211_hw
*hw
,
4020 struct ieee80211_vif
*vif
,
4021 const struct ieee80211_event
*event
)
4023 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4025 switch (event
->type
) {
4027 iwl_mvm_event_mlme_callback(mvm
, vif
, event
);
4030 iwl_mvm_event_bar_rx_callback(mvm
, vif
, event
);
4032 case BA_FRAME_TIMEOUT
:
4033 iwl_mvm_event_frame_timeout_callback(mvm
, vif
, event
);
4040 const struct ieee80211_ops iwl_mvm_hw_ops
= {
4041 .tx
= iwl_mvm_mac_tx
,
4042 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
4043 .start
= iwl_mvm_mac_start
,
4044 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
4045 .stop
= iwl_mvm_mac_stop
,
4046 .add_interface
= iwl_mvm_mac_add_interface
,
4047 .remove_interface
= iwl_mvm_mac_remove_interface
,
4048 .config
= iwl_mvm_mac_config
,
4049 .prepare_multicast
= iwl_mvm_prepare_multicast
,
4050 .configure_filter
= iwl_mvm_configure_filter
,
4051 .config_iface_filter
= iwl_mvm_config_iface_filter
,
4052 .bss_info_changed
= iwl_mvm_bss_info_changed
,
4053 .hw_scan
= iwl_mvm_mac_hw_scan
,
4054 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
4055 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
4056 .sta_state
= iwl_mvm_mac_sta_state
,
4057 .sta_notify
= iwl_mvm_mac_sta_notify
,
4058 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
4059 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
4060 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
4061 .sta_rc_update
= iwl_mvm_sta_rc_update
,
4062 .conf_tx
= iwl_mvm_mac_conf_tx
,
4063 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
4064 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
4065 .flush
= iwl_mvm_mac_flush
,
4066 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
4067 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
4068 .set_key
= iwl_mvm_mac_set_key
,
4069 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
4070 .remain_on_channel
= iwl_mvm_roc
,
4071 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
4072 .add_chanctx
= iwl_mvm_add_chanctx
,
4073 .remove_chanctx
= iwl_mvm_remove_chanctx
,
4074 .change_chanctx
= iwl_mvm_change_chanctx
,
4075 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
4076 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
4077 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
4079 .start_ap
= iwl_mvm_start_ap_ibss
,
4080 .stop_ap
= iwl_mvm_stop_ap_ibss
,
4081 .join_ibss
= iwl_mvm_start_ap_ibss
,
4082 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
4084 .set_tim
= iwl_mvm_set_tim
,
4086 .channel_switch
= iwl_mvm_channel_switch
,
4087 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
4088 .post_channel_switch
= iwl_mvm_post_channel_switch
,
4090 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
4091 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
4092 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
4094 .event_callback
= iwl_mvm_mac_event_callback
,
4096 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
4098 #ifdef CONFIG_PM_SLEEP
4100 .suspend
= iwl_mvm_suspend
,
4101 .resume
= iwl_mvm_resume
,
4102 .set_wakeup
= iwl_mvm_set_wakeup
,
4103 .set_rekey_data
= iwl_mvm_set_rekey_data
,
4104 #if IS_ENABLED(CONFIG_IPV6)
4105 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
4107 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,
4109 .get_survey
= iwl_mvm_mac_get_survey
,
4110 .sta_statistics
= iwl_mvm_mac_sta_statistics
,